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In isolated power supplies, optocouplers pass the feedback signal across the isolation boundary. Optocouplers contain both a light-emitting diode and a photo detector. Current flowing through the LED results in a proportional current flowing in the photo detector...

Analog Devices announces the Power by Linear LTC3351, a supercapacitor charger and backup power controller IC that includes hot swap front-end protection and all the features necessary to provide a complete, standalone capacitor-based backup power solution...

Toshiba Electronics Europe has announced the launch of a new photorelay in a small 2.54SOP4 package that is just 2.1 mm high with a 2.54 mm pitch. Fabricated using the latest U-MOS VIII trench MOSFET process, the new TLP3145 combines an off-state output terminal voltage of 200 V with a controllable on-state current of up to 0.4 A continuously or 1.2 A when pulsed...

Redundant arrays of independent disks, or RAID, systems, by nature are designed to preserve data in the face of adverse circumstances. One example is power failure, thereby threatening data that is temporarily stored in volatile memory. To protect this data, many systems incorporate a battery-based power backup that supplies short-term power – enough watt-seconds for the RAID controller to write volatile data to nonvolatile memory...

Automotive OEMs can enhance the safety of their lithium-ion battery packs with robust communications, comprehensive diagnostics, and lower system costs with the MAX17843 12-channel, high-voltage smart sensor data-acquisition device from Maxim Integrated Products...

Impulse-response and rise-time testing often require a fast-rise-time source with a high degree of pulse purity. These parameters are difficult to achieve simultaneously, particularly at subnanosecond speeds. The circuit derived from oscilloscope calibrators meets the speed and purity criteria...

Diodes Incorporated announced the PT7M3808 family of microprocessor supervisory circuits. These devices monitor system voltages from 0.4 V to 5.0 V, and feature threshold accuracy from 0.5% and an adjustable delay time from 1.25 ms to 10 ms...

In new mixed-voltage systems, it is often necessary to level-shift a control signal from a high level to a low level. An open-drain device, such as the 74LVC2G07, easily performs this shift. However, when a bidirectional signal requires level-shifting, it takes a bit more circuitry...

Alpha and Omega Semiconductor introduced AONE36132, a 25 V N-Channel MOSFET in a dual DFN 3.3 × 3.3 package which is ideal for synchronous buck converters...

Diodes Incorporated announced its most advanced dataline transient voltage suppressorever, the DESD3V3Z1BCSF-7. Designed to provide exceptional TVS/ESD protection to the high-speed input/output ports of advanced systems-on-chips featuring differential signal line running at 5 GHz and beyond...